Our own study (the largest rigorous study of KIPP) estimated that over three years KIPP middle schools have
an average cumulative impact of 0.21 standard deviations in reading and 0.36 standard deviations in math, roughly equivalent to an additional eight to 11 months of learning.
Not exact matches
The
cumulative impact, say the West Sussex heads, is that over the past five years, «school age children in each London borough have, on
average, received # 1bn more school funding than their counterparts in West Sussex».
This research highlights how a series of modest incremental changes to
average LCOE assumptions can have a profound
cumulative impact on the affordability of power generation technologies.